on_pr.yml

name: Create Tag and Increment Version

on:
  pull_request:
    branches:
      - main
    types: [closed]
  workflow_dispatch:  # Allow manual triggering

jobs:
  create-tag:
    if: ${{ github.event.pull_request.merged }} || github.event_name == 'workflow_dispatch
    runs-on: ubuntu-latest
    permissions:
      contents: write
    steps:
      - name: Checkout code
        uses: actions/checkout@v4

      - name: Get latest tag and increment version
        id: tag_version
        uses: actions/github-script@v7
        with:
          script: |
            // Get the latest tag
            const tags = await github.rest.repos.listTags({
              owner: context.repo.owner,
              repo: context.repo.repo,
            }).then(res => res.data);

            let latestTag = 'v0.0.0'; // Default if no tags exist
            if (tags.length > 0) {
              latestTag = tags[0].name; // Assuming tags are sorted by date (newest first)
            }

            // Extract version components
            const [, year, month, minor] = latestTag.match(/v(\d{4})\.(\d{2})\.(\d+)/) || [null, 0, 0, 0];

            // Get current year and month
            const now = new Date();
            const currentYear = now.getFullYear();
            const currentMonth = now.getMonth() + 1; // Months are 0-indexed

            // Determine the new version
            let newMinor = parseInt(minor) + 1;
            if (currentYear > parseInt(year) || currentMonth > parseInt(month)) {
              newMinor = 0;
            }

            const newVersion = `v${currentYear}.${currentMonth.toString().padStart(2, '0')}.${newMinor}`;

            // Output the new version
            core.setOutput('new_version', newVersion);

      - name: Create Tag
        uses: actions/github-script@v7
        with:
          script: |
            // Access the output directly using the step id and output name
            const newVersion = '${{ steps.tag_version.outputs.new_version }}';

            // Create the new tag
            await github.rest.git.createRef({
              owner: context.repo.owner,
              repo: context.repo.repo,
              ref: `refs/tags/${newVersion}`,
              sha: context.sha,
            });
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
      - name: Trigger Tag Workflow
        uses: peter-evans/repository-dispatch@v2
        with:
          token: ${{ secrets.GITHUB_TOKEN }}
          event-type: tag_created  # Choose a descriptive event type
          client-payload: '{"tag_name": "${{ steps.tag_version.outputs.new_version }}"}'